In a statement his family said: “Aidan, a native of County Sligo, had lived in Ipswich, and more recently Felixstowe, for more than 12 years.

“He was the father of three children, two daughters aged 14 and 12 and a son, aged nine. Aidan was a great family man. His main focus was spending time with his children.

“He returned to Ireland several times annually as he loved spending family time there.

“Aidan was a keen Gaelic footballer in his youth and a promising golfer, which suited his laid back style.

“He was a fun-loving, gentle and generous man who held several friendships both in Ipswich and Ireland over the years.

“His family and friends are devastated by his untimely death and will forever mourn his passing.

“We would appeal to anyone who has any information about Aidan’s death to contact the police to help move the investigation forward. We need to have the answers to our questions to help us come to terms with what has happened.

Police were called to the B1063 by paramedics around 10.30am on Tuesday, May 13, who said a man had collapsed

Mr Gallagher was being taken by ambulance to Addenbrooke’s Hospital, Cambridge, but died en route.

After his death officers have placed collision anniversary boards along the roadside, in the hope that someone who had been driving along the road would come forward with information.

Also, with the assistance of automatic number plate recognition (ANPR), details of vehicles travelling along the road between 9am and 11am were captured so further enquiries could be carried out. Police have also made some house-to-house enquiries in Lidgate.

Detective Inspector Kevin Hayward from the Joint Norfolk and Suffolk major investigation team said: “Although a number of people have come forward following our previous appeals we hope that the tribute and appeal from Aidan’s family will prick the conscience of someone who may have information about his death and what happened that day.